1. Peristalsis - waves or contractions that move food along the digestive system.
2. Polygenic inheritance - when a group of gene pairs acts together to produce a
single trait.
3. Pedigree - a tool for tracing the occurrence of a trait in a family.
4. Genetic Engineering - experimenting with biological and chemical methods to
change the DNA sequence that makes up a gene.
5. Genetics - the study of how traits are inherited through the actions of alleles
(genes)
